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List:       gpgtools-users
Subject:    [gpgtools-users] Mail does not validate my own signatures
From:       james.cutler () consultant ! com (Cutler James R)
Date:       2011-02-03 11:53:54
Message-ID: 1F3F19FB-8D0D-459A-B6E3-3F65D2634829 () consultant ! com
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Header is wrapped on my system with caching enabled in mail. [10.6.6 up to date]

On Feb 3, 2011, at 4:09 AM, Rapha?l ?Kena? Poss wrote:

> Hi Alex
> 
> On Thu, 03 Feb 2011 07:53 +0100, "Alexander Willner" <alex at willner.ws>
> wrote:
> > On 03.02.2011, at 03:37, Raphael 'kena' Poss wrote:
> > > I checked with GPGMail disabled (not in the Bundles directory), and I see that \
> > > Mail.app still breaks the content header with GPGMail disabled. So this \
> > > behavior seems not specific to GPGMail.
> > 
> > Neither it seems to be specific to Apple Mail since I cannot reproduce
> > this issue (see below). Not sure why your message gets modified - maybe
> > you've using slightly different mail servers in Mail and Thunderbird?
> > Does it help to rename Library/Preferences/com.apple.mail.plist and
> > reconfigure Mail.app?
> 
> The mail server is the same in Mail and Thunderbird. As another data
> point, I sniffed the IMAP traffic between Mail and the server, and I
> also confirm that the content header is on a single line at the point it
> comes from IMAP into Mail.app.
> 
> (btw, all these tests are made with Mail 4.4 build 1082.)
> 
> However you were on the right track. I think I found where the issue
> lies. Here is the path through the experiment:
> 
> I tried with another Mac running 10.6.6 and the same Mail build. I
> configured the same mail server, once over SSL and once over plain IMAP.
> In both cases, the content header is wrapped. 
> 
> Then I created a blank OS X user account on that other Mac with a virgin
> Mail install (as you suggested) and there the content header is still
> wrapped.
> 
> Then I checked your idea to use a different mail server. I redirected
> the message to a different e-mail account and I downloaded it using that
> different account's server on the 2nd Mac. Surprise! Then the header is
> *not* wrapped. Then I install GPGMail and the signature does validate
> properly.
> 
> So I got back to the 1st Mac with GPGMail and I connect to this 2nd
> e-mail server. Alas, then the header is wrapped again!
> 
> To summarize:
> 
> Mac 1                Mac 2
> Server 1     broken               broken
> Server 2     broken               OK
> 
> Now, I tried to make another blank OS X user account, and I tried again.
> And then it was, the header was not wrapped in either server 1 nor
> server 2!
> 
> That got me thinking and I browsed through the differences between my
> first test account above and this new one. They were both identical,
> except for *one* option: "do not keep copies of the messages nor
> attachments" in Mail's account preferences. 
> 
> I checked all my previous experiments and I can confirm this: in all my
> situations the content header is wrapped if and only if caching is
> disabled.
> 
> Now what to do with that? I certainly don't want to enable caching of my
> main inbox on any computer. 
> 
> Thanks in advance for any comments or suggestions.
> -- 
> Rapha?l ?Kena? Poss
> 
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James R. Cutler
james.cutler at consultant.com


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